<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="../bootstrap-5.1.3-dist/css/bootstrap.css">
    <script src="../bootstrap-5.1.3-dist/js/bootstrap.js"></script>
</head>

<body class="container">
    <h3 align="center">设置按钮的各种状态</h3>
    <button href="#" class="btn btn-primary">按钮的默认状态</button>
    <button href="#" class="btn btn-primary active">按钮的激活状态</button>
    <button type="button" class="btn btn-primary" disabled>按钮的禁用状态</button>
</body>

</html>